Avaliação do aquecimento em aviários utilizando dois combustiveis em função das variáveis do ambiente

Abstract

The objective of this study was to determine the best heating system, comparing two fuels and their supply methods, to improve the ambience and thermal comfort of broiler poultry houses, depending on environmental variables. To this end, the study was conducted in four commercial poultry houses located in the city of Umuarama - Paraná. The flock density was thirteen chicken/m2, totaling 27,300 chickens housed in each facility. Each aviary represented a treatment in the experiment, differing by energy source (eucalyptus and pellets). The variables collected were air temperature and relative humidity, carbon dioxide and ammonia, which were recorded at six collection points every day at 9pm. The heaters used were hybrid machines, where two were fueled with wood, one with pellets and one with both fuels at the same time.. After tabulating the data, the analysis of variance (ANOVA) was conducted to see if there were any significant differences between the treatments evaluated, and the test for comparing means at 5% significance was conducted using the RBio software. The poultry house that performed best in the indicators evaluated was the one that used pellets as fuel, as well as having the highest calorific value, it is the one that relies least on labor for it fueling. The wood-fueled poultry houses differed from each other due to the distance between the machine room and the manager's house, demonstrating the importance of the professional who manages the farm. Lastly, the period evaluated had an atypical climate for the region, with temperatures lower than the historical climate, compromising the development of the plot due to inefficient or undersized machinery.